Connectivity between the endpoint version and OS_VOLUME_API_VERSION.

Adds functionality which allows user to work with
that cinder API version which is the same as
the endpoint version.

Fixes: bug #1169455

Change-Id: I9bb46e602d15856d2da502a6ac2b6c25e76f4fa3

cinderclient/client.py

@@ -369,6 +369,17 @@ def _authenticate(self, url, body):
 
         return self._extract_service_catalog(url, resp, body)
 
+    def get_volume_api_version_from_endpoint(self):
+        magic_tuple = urlparse.urlsplit(self.management_url)
+        scheme, netloc, path, query, frag = magic_tuple
+        v = path.split("/")[1]
+        valid_versions = ['v1', 'v2']
+        if v not in valid_versions:
+            msg = "Invalid client version '%s'. must be one of: %s" % (
+                  (v, ', '.join(valid_versions)))
+            raise exceptions.UnsupportedVersion(msg)
+        return v[1:]
+
 
 def get_client_class(version):
     version_map = {

cinderclient/exceptions.py

@@ -10,6 +10,10 @@ class UnsupportedVersion(Exception):
     pass
 
 
+class InvalidAPIVersion(Exception):
+    pass
+
+
 class CommandError(Exception):
     pass
 

cinderclient/shell.py

@@ -448,6 +448,15 @@ def main(self, argv):
         except exc.AuthorizationFailure:
             raise exc.CommandError("Unable to authorize user")
 
+        endpoint_api_version = self.cs.get_volume_api_version_from_endpoint()
+        if endpoint_api_version != options.os_volume_api_version:
+            msg = (("Volume API version is set to %s "
+                    "but you are accessing a %s endpoint. "
+                    "Change its value via either --os-volume-api-version "
+                    "or env[OS_VOLUME_API_VERSION]")
+                   % (options.os_volume_api_version, endpoint_api_version))
+            raise exc.InvalidAPIVersion(msg)
+
         args.func(self.cs, args)
 
     def _run_extension_hooks(self, hook_type, *args, **kwargs):

cinderclient/tests/v1/fakes.py

@@ -119,6 +119,9 @@ def __init__(self, *args, **kwargs):
                                extensions=kwargs.get('extensions'))
         self.client = FakeHTTPClient(**kwargs)
 
+    def get_volume_api_version_from_endpoint(self):
+        return self.client.get_volume_api_version_from_endpoint()
+
 
 class FakeHTTPClient(base_client.HTTPClient):
 
@@ -127,6 +130,7 @@ def __init__(self, **kwargs):
         self.password = 'password'
         self.auth_url = 'auth_url'
         self.callstack = []
+        self.management_url = 'http://10.0.2.15:8776/v1/fake'
 
     def _cs_request(self, url, method, **kwargs):
         # Check that certain things are called correctly
@@ -164,6 +168,11 @@ def _cs_request(self, url, method, **kwargs):
         else:
             return utils.TestResponse({"status": status}), body
 
+    def get_volume_api_version_from_endpoint(self):
+        magic_tuple = urlparse.urlsplit(self.management_url)
+        scheme, netloc, path, query, frag = magic_tuple
+        return path.lstrip('/').split('/')[0][1:]
+
     #
     # Snapshots
     #

cinderclient/tests/v1/test_shell.py

@@ -32,7 +32,7 @@ class ShellTest(utils.TestCase):
         'CINDER_USERNAME': 'username',
         'CINDER_PASSWORD': 'password',
         'CINDER_PROJECT_ID': 'project_id',
-        'OS_VOLUME_API_VERSION': '1.1',
+        'OS_VOLUME_API_VERSION': '1',
         'CINDER_URL': 'http://no.where',
     }
 

cinderclient/tests/v2/fakes.py

@@ -126,6 +126,9 @@ def __init__(self, *args, **kwargs):
                                extensions=kwargs.get('extensions'))
         self.client = FakeHTTPClient(**kwargs)
 
+    def get_volume_api_version_from_endpoint(self):
+        return self.client.get_volume_api_version_from_endpoint()
+
 
 class FakeHTTPClient(base_client.HTTPClient):
 
@@ -134,6 +137,7 @@ def __init__(self, **kwargs):
         self.password = 'password'
         self.auth_url = 'auth_url'
         self.callstack = []
+        self.management_url = 'http://10.0.2.15:8776/v2/fake'
 
     def _cs_request(self, url, method, **kwargs):
         # Check that certain things are called correctly
@@ -171,6 +175,11 @@ def _cs_request(self, url, method, **kwargs):
         else:
             return utils.TestResponse({"status": status}), body
 
+    def get_volume_api_version_from_endpoint(self):
+        magic_tuple = urlparse.urlsplit(self.management_url)
+        scheme, netloc, path, query, frag = magic_tuple
+        return path.lstrip('/').split('/')[0][1:]
+
     #
     # Snapshots
     #

cinderclient/v1/client.py

@@ -98,3 +98,6 @@ def authenticate(self):
         credentials are wrong.
         """
         self.client.authenticate()
+
+    def get_volume_api_version_from_endpoint(self):
+        return self.client.get_volume_api_version_from_endpoint()

cinderclient/v2/client.py

@@ -95,3 +95,6 @@ def authenticate(self):
         credentials are wrong.
         """
         self.client.authenticate()
+
+    def get_volume_api_version_from_endpoint(self):
+        return self.client.get_volume_api_version_from_endpoint()